Former U.S. Solicitor General Ken Starr said Monday that special counsel Robert Mueller "needs to" interview President Donald Trump before he can "complete his investigation."
On CNN's "New Day" Monday, Starr said that Mueller "needs to, in order to round out, complete his investigation, to come to a decision, he needs to look the president in the eye and ask him the appropriate questions."
Over the weekend, Trump admitted to being asked to meet with Mueller and said "let's be open and get it over with," though he did not clarify if he agreed to a face-to-face interview, according to CNN.
Starr added that although he hasn't seen any evidence that Trump obstructed justice, "we don't know what Bob Mueller knows, so the jury is out. He's finding out facts, so my view is let him do his job."
He also said that the White House would likely negotiate with Mueller to define the terms of the interview, and that "the last thing you would want would be to have the president be subpoenaed."
Senate Judiciary Committee member Richard Blumenthal, D-Conn., also said on CNN Monday that Mueller will "unquestionably" talk with Trump in person sometime this year.
"My view is it will probably happen sometime this year. We're going to have more convictions," Blumenthal told host Alisyn Camerota.
He added, "I think that the evidence accumulating against individuals within the White House, within the administration, the mounting evidence of obstruction of justice that's public, and we have no idea all of what's available to the special counsel."